Test Building

Test Building, also known as the Circle Motor Inn, is a historic commercial building in Indianapolis, Indiana. It was built in 1925, and is a nine-story, reinforced concrete structure with 12-inch thick brick and clay tile curtain walls. It is faced with Indiana limestone and has a three-story brick penthouse and two-level basement. The mixed-use building housed the city's earliest large parking garages.

It was listed on the National Register of Historic Places in 1983. It is in the Washington Street-Monument Circle Historic District.